NiCo2O4/C Nanocomposite as a highly reversible anode material for lithium-ion batteries

Authors

Yanna NuLi, University of WollongongFollow
Peng Zhang, University of Wollongong
Zaiping Guo, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow
Jun Yang, Shanghai Jiao Tong University

RIS ID

24596

Publication Details

Nuli, Y., Zhang, P., Guo, Z., Liu, H. K. & Yang, J. (2008). NiCo2O4/C Nanocomposite as a highly reversible anode material for lithium-ion batteries. Electrochemical and Solid-State Letters, 11 (5), A64-A67.

Abstract

A NiCo₂O₄/C nanocomposite has been synthesized by a hydrothermal method followed by a calcination. X-ray powder diffraction and transmission electron microscopy measurements demonstrated the composite was composed of crystalline NiCo₂O₄ and amorphous carbon, and NiCo₂O₄ and carbon particles amalgamated together with good affinity. The electrochemical results showed as high as 914.5 mAh/g reversible capacity could be achieved at 40 mA/g current density in the potential range of 0.01-3.0 V. The initial coulombic efficiency of the composite was 79.2%, and the capacity retention was 78.3% up to 50 cycles. The superior electrochemical performance indicated that the NiCo2O4/C nanocomposite might be a promising alternative to conventional graphite-based anode materials for lithium-ion batteries.